'use strict'
const path = require('path')
const TerserPlugin = require('terser-webpack-plugin')

function resolve(dir) {
  return path.join(__dirname, dir)
}

const name =  '门户管理系统' // 标题

const port = 80 // 端口

// vue.config.js 配置说明
//官方vue.config.js 参考文档 https://cli.vuejs.org/zh/config/#css-loaderoptions
// 这里只列一部分，具体配置参考文档
module.exports = {
  // publicPath:'./',
  // 在npm run build 或 yarn build 时 ，生成文件的目录名称（要和baseUrl的生产环境路径一致）（默认dist）
  outputDir: `dist`,
  // 用于放置生成的静态资源 (js、css、img、fonts) 的；（项目打包之后，静态资源会放在这个文件夹下）
  assetsDir: 'static',
  // 默认情况下，Vue CLI 会假设你的应用是被部署在一个域名的根路径上
  publicPath: process.env.VUE_APP_LEVEL2_NAME
    ? process.env.VUE_APP_LEVEL2_NAME + '/'
    : '/',
  // 是否开启eslint保存检测，有效值：ture | false | 'error'
  lintOnSave: process.env.NODE_ENV === 'development',
  // 如果你不需要生产环境的 source map，可以将其设置为 false 以加速生产环境构建。
  productionSourceMap: false,
  // webpack-dev-server 相关配置
  devServer: {
    host: '0.0.0.0',
    port: port,
    open: true,
    proxy: {
      '/api': {
        // 测试环境
       // target: 'http://192.168.203.63:56001/api',
        // 开园
         target: 'http://192.168.5.88:16007',
        // 亚华
        //target: 'http://192.168.5.85:16007',
        changeOrigin: true,
        pathRewrite: {
          ['^/api']: ''
        },
        logLevel: 'debug'
      }
    },
    disableHostCheck: true
  },
  configureWebpack: config => {
    config.optimization = {
      minimizer: [
        new TerserPlugin({
          terserOptions: {
            compress: {
              // 生产环境去除console
              drop_console: true,
              // 去除debugger
              drop_debugger: true
            },
            output: {
              // 去除注释内容
              comments: false
            }
          },
          extractComments: false // 是否将注释提取到单独的文件中
        })
      ]
    }
    return {
      name: name,
      resolve: {
        alias: {
          '@': resolve('src')
        }
      }
    }
  },
  chainWebpack(config) {
    config.plugins.delete('preload')
    config.plugins.delete('prefetch')

    // set svg-sprite-loader
    config.module.rule('svg').exclude.add(resolve('src/assets/icons')).end()
    config.module
      .rule('icons')
      .test(/\.svg$/)
      .include.add(resolve('src/assets/icons'))
      .end()
      .use('svg-sprite-loader')
      .loader('svg-sprite-loader')
      .options({
        symbolId: 'icon-[name]'
      })
      .end()

    config.when(process.env.NODE_ENV !== 'development', config => {
      config
        .plugin('ScriptExtHtmlWebpackPlugin')
        .after('html')
        .use('script-ext-html-webpack-plugin', [
          {
            // `runtime` must same as runtimeChunk name. default is `runtime`
            inline: /runtime\..*\.js$/
          }
        ])
        .end()
      config.optimization.splitChunks({
        chunks: 'all',
        cacheGroups: {
          libs: {
            name: 'chunk-libs',
            test: /[\\/]node_modules[\\/]/,
            priority: 10,
            chunks: 'initial' // only package third parties that are initially dependent
          },
          elementUI: {
            name: 'chunk-elementUI', // split elementUI into a single package
            priority: 20, // the weight needs to be larger than libs and app or it will be packaged into libs or app
            test: /[\\/]node_modules[\\/]_?element-ui(.*)/ // in order to adapt to cnpm
          },
          commons: {
            name: 'chunk-commons',
            test: resolve('src/components'), // can customize your rules
            minChunks: 3, //  minimum common number
            priority: 5,
            reuseExistingChunk: true
          }
        }
      })
      config.optimization.runtimeChunk('single'),
        {
          from: path.resolve(__dirname, './public/robots.txt'), //防爬虫文件
          to: './' //到根目录下
        }
    })
  }
}
